Machine for placing metal reenforcement



Oct. 20, 1925.

J. W. LIVERSEDGE MACHINE FOR PLAQIMG METAL REINFORCEMENT 6. 1924 4 Sheets-Sheet 1.

Filed Nov.

l N v E N TO R; 0.756 M/IY/l'am Liver aa yo ATT O R N EY- Oct. 20, 1925. 1,558,023

J. w. LIVERSEDGE MACHINE FOR PLACING METAL ENFORCEMENT Filed Nov. 6, 1924 4 sheets-Sheet 2 I N V E N TOR: (73hr, k/i/liam L/Vtfstd? BY: 'm 8 A T TO R N EY Patented Oct. 20, 1925.

UNITED STATES JOHN WILLIAM LIVERSEDGE, OF HALTON, NEAR LEEDS, ENGLAND.

MACHINE FOR PLACING METAL REENFORCEMENT.

Application filed November 6, 1924. Serial No. 748,123.

To all whom it may concern:

Be it known that I, JOHN WILLIAM Livnnsnnen, a British subject, residing at Halton, near Leeds, in the county of York,

England, have invented certain new and useful Improvements in a Machine for Placing Metal Reenforcement, of which the following is a specification.

This invention relates to a machine for accurately placing and maintaining in the required position steel or the like metal in the form of wire, rods, bars, or fabric used and required in the construction of reenforced concrete structures and roads.

comprises an arrangement of flanged beams or girders provided with vertical slots of V or other required shape at any required intervals into which is placed the reenforcing material so that the reenforcement rests on the flange to which it is secured by means of a plate clamped at intervals, the beams or girders together with the reenforcing ma terial being supported at one or both ends 2 by a trolley or carrier adapted to receive, support and secure the beams or girders carrying the reenforcing material so as to maintain the latter at the required tension. The beams or girders are held at their extremities in vertically and horizontally adjustable slides supported in or on the trolley or carrier. The invention also comprises means for supporting or holding the reenforcements prior to and during their application to concrete structures or roads.

In order that the invention may be clearly understood and readily carried into effect the same will now be more fully described with the aid of the accompanying drawings in which Figure 1 is an elevation of one trolley or carrier.

Figure 2 is a plan of Figure 1.

Figure 3 is a diagrammatic View showing the machine in use for positioning the reenforcements.

Figure 4 is an elevation of the means or apparatus for supporting the reen'forcements prior to and during the operation of positioning the same by the machine.

Figure 5 is a plan of Figure 4:.

Figure 6 is an end elevation showing one of the reenforcement carrying drums low- According to the invention the machine ered to permit of the reenforcement being placed thereon. 1

Figures 7 and 8 are detail views showing the method of supporting the drums.

Referring now to the drawings, 10 represents the carrier or trolley mounted on wheels or runners 11 which may be adapted either for travelling on roads or rails and 12 are the beams or girders. For laying or positioning reenforcing material, the carriers or trolleys 10 may be arranged in pairs, see Figure 3, at any convenient distance apart required in the construction of the road or structure, such distance depending on the length of the beams or girders 12 supporting the material and secured at each end to the trolley or trolleys.

For holding or securing the beams or girders 12 carrying the reenforcing material at the extremities, vertically and horizon tally slidable members 13 are mounted in or on the carrier or trolley 10, which members 13 are grooved and recessed at 14 to receive the ends of the beams or girders 12 for supporting and securing the reenforcing material. To hold the beams or girders 12 in position the members 13 as indicated in Figure 1 have adjustably mounted within the grooves or recesses 14c clamping means 1 1 vertically adjustable by means of screws 15 and hand wheels 16, the screws 15 being supported in a bracket 17. The members 13 have also lateral extensions or flanges 18,

which enter an inner box 19 movable horizontally relatively to and between the sides 20 of the trolley or carrier 10 by means of a screw 21 and hand wheel 22, the screw 21 being supported-in one of the sides 20, and threaded through the boss 23. The mem bers 13 are also vertically adjustable by means of the screw 24: and hand wheel 25, also mounted on the bracket 17 As indicated in Figures 1 and 3, the members'13 supporting the beams or girders 12 may be arranged at varying heights and levels and, if desired, the number of reenforcement holding beams or girders 12 may be increased. Figure 3 shows the reentorcing material 26 supported 011 the flange 27 of the beam or girder12 provided with slots 28. A plate 29 is laid over'the reenforcing material 26 andheld down in position by clamps 30, the beamsorgirders 12 being held at their extremities by the trolleys or carriers arranged at each side. In some cases one trolley or carrier only may be used, the beam'being cantilevered, on .one side or secured on both sides, in which event a U-shaped beam would be used with sultable bracket supports.

In some cases in order to give the required tension to the reenforcem'ent a beam or girder 12 with securing plate 29 and attachments may be placedat any required dista-nce from the machine and secured to the structure or'grou nd 'bolts or spikes, the other extremities of the beam or girder 12 and plate 29 being secured as before on the machine and the reenforcing material passed through the slots a i1d secured by the plate 29 and clamps 30 to be held in the required position. rifter a section of coiic r ete has been laid the .reen fqrcement is then held at one end by and in theconcrete and the other end in the beam or girder 12 forming part of themachine" without the necessity of securing it in the beam or girder first referred to.

v The reenforcing material is given the required tension by means of the horizontal screw 21 which may be duplicated ifdesired.

lhe base of the socket members 13 into which the beams or girders 12'suppoi-Yting the reenforcing materialare fitted together with the flange of thebeam and the undersurface of the clamping plate 29 may be ribbed or otherwise formed to grip the reenforcing material.

The base or platform 31,0f the trolley may also be extended either longitudinally or transversely so as to connect to the opposite trolley and be utilized for carrying or supporting the reenforcing material prior to for during the layingor positioning of the same, and in this connection recesses or chambers 32, see Figure 2, maybe provided. I

The trolley or carrier 10 when in use-may be secured to the ground by means of dog spikes, bolts or the like passed through slots or openings formed in the base plate 31. V

The machine or apparatus may be adapted to be operated or moved along the road or rails either by hand or moti ve power, and in this connection thereenforcing .niaterial maybe secured to a structureatgoneend, and the machine utilized to tensionthe same during the positioning thereof. l

Referring now to Figures 1 to 8 the reenforcements are mounted on and supported adjacent to the trolley or cai rier 10 on frames comprising-two or more standards '33 mounted on a base or platform 34: i il ich may be an extension of the platform 31 of the trolley or carrier 10. h/lidway betwee'n the standards 33 is erected a central support for column 35 the base of which is fitted into jection 37 serving to support the column 35 at the foot of which it rests in the socket 36. The tops of the standards 33 and the central column 35 are connected by a horizontal beam or girder 38 the ends of which latter are secured to the standards 33 by any appropriate fastening device. The head of the column 35 passes freely through an opening .in the horizontalbeam origirder 38. A flange 39 on the central column 35 serves to rest on beam 38 When the column 35 is required to be rotated.

On the standards 33 are fitted at any required and suitable heights adjustable sliding lever arm bearings consisting of upper and lower sets of parallel plates 10, all (see Figure 6) secured at one end to the inside of the standards at any required height, and supported at the other end'by a short standard 42 provided with head and base plates e3, 14, the former being secured to the parallel plates 40, 4:1,- and the latter to the platform 34;, which as shown is mounted on wheels 45. In the space afforded between the parallel plates or bars 610, ll, is fitted a pin or axle 16 having a rim or disc 17 at each end and adapted to slide between the plates 40, 11. The axle e6 maybe fitted to receive a tension device consisting of wire attachments 43 passing over pul eys 19 secured to the standard 33, said wire +18 being secured to the axle 46 at oneendand suitably weighted by weights 50 at the other extremity,or a tension spring may beused inl ieu of weights.

On the sliding pin or axle lGand betiveen the plates or bars 10, 4:1, is fitted a bellcrank contrivance consisting of ,a lever arm 51 with forked or'bifurcated extremity 52 [to receive the pin or axle 46. When the arm 51 is vertical the forked extremity or mouth piece 52 assumes a horizontal position, and when the lever arm 51 is pressed down-horizontally between the parallel plates or bars 40, 11, themouth piece 52 takes a vertical position, one or more fixed or adjustable stops 53 being provided at the ends of the parallel bars to support the mouth piece 52 when in a horizontal position, and similar stops 54 fixed to the plate 41 against which the lever arm 51 rests when in the horizontal position. Each mouthpiece 52 is ide signed to receive one end of the shafting 55 which passes through and is securely fixed to the central column 35 at any required heightor angle, the column 35 being provided with a suitable bearing 56 to receiv'e'the shafting 55. The shafts 55 are adapted to be swung inwardly o1- outwardly on or about the cfentral column 35. When swunginwardly the shaft- 55 enters the mouth piece 52 and a pin 57 passed through holes inthe mouthpiece 52 prevents the shaft slipping outbf the mouth .piece when the latter is raised .by means of the lever arm 51( d v'hen tlie lever a socket 36 in the platform 34, a flanged proarm 51 is lowered the shafting55 is raised and the central column 35 is also raised, such column moving freely in slots provided in the top beam or girder 88 and in the platform 3l the ends of the shafting sliding along the forked mouth piece 52 into the prepared bearing in the vertical position. A ratchet arrangement is provided at the foot of the column 35 said ratchet arrangement consisting of one or more forked arms 58 with swivel joint at the upper end attached to the central column 35 at any required and convenient height, and at the other or lower end is a fork or prong which catches into the ratchet plate 59 secured to the platform near the base of the column 35 so that when the column 35 is lifted the forked arms 58 catch on the ratchet projections and help to support the column. Handles 60 for turning the shafting 55 are provided at the outer ends, said handles being secured by cotters 61. Also a ratchet wheel and pin 63 serve to secure the shafting 55 in the position required. On the shafting 55 is fitted and secured one or more drums 6'4 and at required intervals slots 65 are formed to re ceive flaps 66 hinged at one end and adapted to sink into and. be flush with the drum 64:. Each flap is fitted with one or more projecting pins 67 which pass into holes in the drum ea when the flaps 66 are down. The space between the flaps 66 when raised receives a coil of wire reenforcement and the pins 67 in the flaps 66 project into and between the strands of wire to hold the coil in position on the drum 64. At any required and suitable position on the platform 34 is fixed one or more frames 68 fitted with vertical roller bearings 69 spaced at any required distance apart. "Each frame 68 consists of upper, lower and side plates and between the upper and lower plates roller bearings 69 work on a central pin 70 which passes into the upper and lower plates to provide a vertical axle about which the bearing 69 can freely revolve. The bearings are fixed at any required distance apart on the drum 6st and between them is passed the strands of wire from the coils to be fed for positioning the machine as previously described.

I claim 1. An apparatus of the character described, comprising a movable carriage, means carried by said carriage for supporting a plurality of reenforcing elements in spaced parallel relation, means for raising and lowering said supporting means, and means for moving the supporting means horizontally with relation to the carriage.

2. An apparatus of the character described, comprising a Wheeled carriage, a plurality of supporting members carried by said carriage in different horizontal planes, means for Vertically and horizontally adjusting said supporting members with relation to said carriage, a slotted girder supported in each of said supporting members, and means carried by said supporting members for clamping said girders in position.

3. An apparatus of the character described, comprising a movable carriage, means carried by said carriage for supporting a plurality of reenforcing elements in spaced parallel relation, means for raising and lowering said supporting means, means for moving the supporting means horizontally with relation to the carriage, and means disposed in uxtaposition to said carriage for supplying reenforcing elements to said supporting means.

4. An apparatus of the character described, comprising in combination, means for supporting a plurality of reenforcing elements in spaced parallel relation, a rotatable shaft supported in juxtaposition to said supporting means, means for swinging said shaft to an arc of a circle thereby to carry the same from a lower to a higher plane and vice versa, means carried by said shaft for supporting a plurality of coils of reenforcing material, means for manually rotating said shaft, and means for guiding the material from each of said coils to its proper position on said supporting means.

JOHN lVlLLIAM LIVERSEDGE. 

